基于YOLOv5的ML-AFP的YOLOv5的多对象检测,用于拥挤的道路场景
Yiming Li1, Kaiwen Wu1, Wenshuo Kang1
1College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
Scientific reports
|October 12, 2023
概括
这项研究引入了一种改进的YOLOv5模型,用于在道路场景中检测多个物体,提高了微小目标和隐藏物体的识别. 新模型显著提高了复杂的交通场景的准确性和回忆率.
科学领域:
- 计算机视觉和机器学习
- 自主系统的人工智能
- 图像处理和模式识别.
背景情况:
- 在道路场景中的多物体检测面临着隐蔽目标和小物体 (如行人和非机动车辆) 的挑战.
- 现有的模型难以准确识别微小的目标,影响复杂的交通环境中的整体场景理解.
- 对于诸如自动驾驶和交通监控等应用来说,强大的检测系统的需求至关重要.
研究的目的:
- 提出一个改进的YOLOv5模型,用于在具有挑战性的道路场景中增强多物体检测.
- 专门解决检测微小目标和隐藏物体的局限性.
- 为了提高对象检测模型的整体准确性,回忆和平均平均精度 (mAP).
主要方法:
- 一个改进的YOLOv5模型,包括一个多级聚合特征感知 (ML-AFP) 机制.
- 增加了微型目标检测层和双头机制,以增强微小目标检测.
- 利用变焦损失来改善非最大抑制 (NMS),以处理对象封闭.
- 在ML-AFP机制中的多尺度空间特征的自适应融合,以促进特征表示.
主要成果:
- 在基准数据集 (KITTI,BDD100K) 上观察到精度,回忆率和mAP值的显著改善.
- 改进后的模型在检测小物体,如行人和非机动车辆方面表现出了卓越的性能.
- 通过Varifocal损失和改进的NMS策略,可以有效地处理目标封闭.
结论:
- 建议改进的YOLOv5模型,配备了ML-AFP机制,有效地应对拥挤道路场景中多物体检测的挑战.
- 专用层和损失函数的集成导致在检测微小和封闭物体方面取得了实质性的收益.
- 这项研究为自动驾驶和智能交通系统提供了更强大,更准确的物体检测解决方案.
更多相关视频
相关概念视频
01:16Confocal Fluorescence Microscopy
13.4K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
13.4K
01:22Force Classification
1.2K
Forces play a crucial role in the study of physics and engineering. They are essential in describing the motion, behavior, and equilibrium of objects in the physical world. Forces can be classified based on their origin, type, and direction of action.
Contact and non-contact forces are two of the most widely used categories of forces. As the name suggests, contact forces require physical contact between two objects to act upon each other. Examples of contact forces include frictional,...
Contact and non-contact forces are two of the most widely used categories of forces. As the name suggests, contact forces require physical contact between two objects to act upon each other. Examples of contact forces include frictional,...
1.2K
01:05Difference from Background: Limit of Detection
6.4K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
The LOD indicates the presence or absence...
6.4K
01:37Super-resolution Fluorescence Microscopy
7.0K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.0K
02:16Light Acquisition
8.5K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.5K
01:12Immunofluorescence Microscopy
10.5K
A fluorescence microscope uses fluorescent chromophores called fluorochromes, which can absorb energy from a light source and then emit this energy as visible light. Fluorochromes include naturally fluorescent substances (such as chlorophylls) and fluorescent stains that are added to the specimen to create contrast. Dyes such as Texas red and FITC are examples of fluorochromes. Other examples include the nucleic acid dyes 4’,6’-diamidino-2-phenylindole (DAPI), and acridine orange.
10.5K